1. Write a rule for the sequence.

8, -1, -10, -19
A) Start with 8 and add -9 repeatedly.
B) Start with -9 and add 8 repeatedly.
C) Start with 8 and add 9 repeatedly.
D) Start with 8 and subtract -9 repeatedly.

6 answers

I'll be glad to check your answer.

I think it is A

Correct. A.

Thanks

You are welcome.

To write a rule for the given sequence, we need to observe the pattern between the terms. The first term is 8, and each subsequent term is obtained by subtracting 9 from the previous term.

To check the validity of the answer choices, let's apply each option to the given terms:

A) Start with 8 and add -9 repeatedly.
8 + (-9) = -1
-1 + (-9) = -10
-10 + (-9) = -19

This matches the given sequence.

B) Start with -9 and add 8 repeatedly.
-9 + 8 = -1 (not the same as the given sequence)

C) Start with 8 and add 9 repeatedly.
8 + 9 = 17 (not the same as the given sequence)

D) Start with 8 and subtract -9 repeatedly.
8 - (-9) = 17 (not the same as the given sequence)

Therefore, the correct answer is option A) Start with 8 and add -9 repeatedly.